Project BIOL 3100

Noah Christensen

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Geologic maps serve as a valuable tool in resource exploration. Traditional mapping is characterized by time-intensive and high-cost fieldwork, but through multispectral and hyperspectral remotely sensed images it is possible to map extensive areas instantly.

Background

FWHM

Full Width Half Mass (FWHM) is an important concept for understanding how different band values are calculated.

Bandpass filters are used to isolate specific wavelengths. The graph below visualizes the idea of FWHM. Each band in a spectral device only takes in a specific range of wavelengths, often the wavelength for each band is just denoted as the peak, but in reality each sensor is collecting a range of wavelengths. This is determined by denoting the FWHM as the area between the 50% transmittance on either side of the curve.

In this plot you can see all the bands for Landsat 8, Hyperion, and ASTER. With their FWHM denoted as boxes. Its important to point out how Landsat 8 does have a band in the Short Wave Infrared (SWIR), but the FWHM is wide and this means that any SWIR data saved for this band could be attributed to any wavelength inside of the FWHM.

Landsat

Loading in and cropping the imagery:

Now lets make some plots of different mineral groups:

A Sabins Ratio plot can be created by combining these three plots into an RGB profile. This leaves colors show a few different things - -

plotRGB(cropped, r = 8, g = 9, b = 10, axes = FALSE, 
        stretch = "lin", main = "Sabins Ratio", margins=TRUE)


#adding a legend manually
legend("left", legend = c("Iron-oxide", "clay-hydroxyl", "ferrous"), fill = c("red","green","blue"))

HYPERION

Hyperion data was downloaded from the USGS EARTH EXPLORER as an L1T Product in GeoTiff format

Reading in L1T product

l <- list.files(path="../../Hyperion/sevier_lake/EO1H0380332014325110PZ_1T/",
                pattern='TIF$',
                full.names=TRUE)

Rasterizing only working bands with the terra package

r <- rast(l[c(8:57,77:224)])

Hyperion Information

HYPERION BAND INFORMATION

Satellite_Name Bands Wavelength_Units Wavelength_nm FWHM_nm Description Irradiance Irradiance_Units Rad_Conv
Hyperion B008 W/m^2 SRμm 426.82 11.3871 VNIR 1650.52 W/m^2-mu 40
Hyperion B009 W/m^2 SRμm 436.99 11.3871 VNIR 1714.90 W/m^2-mu 40
Hyperion B010 W/m^2 SRμm 447.17 11.3871 VNIR 1994.52 W/m^2-mu 40
Hyperion B011 W/m^2 SRμm 457.34 11.3871 VNIR 2034.72 W/m^2-mu 40
Hyperion B012 W/m^2 SRμm 467.52 11.3871 VNIR 1970.12 W/m^2-mu 40
Hyperion B013 W/m^2 SRμm 477.69 11.3871 VNIR 2036.22 W/m^2-mu 40
Hyperion B014 W/m^2 SRμm 487.87 11.3784 VNIR 1860.24 W/m^2-mu 40
Hyperion B015 W/m^2 SRμm 498.04 11.3538 VNIR 1953.29 W/m^2-mu 40
Hyperion B016 W/m^2 SRμm 508.22 11.3133 VNIR 1953.55 W/m^2-mu 40
Hyperion B017 W/m^2 SRμm 518.39 11.2580 VNIR 1804.56 W/m^2-mu 40
Hyperion B018 W/m^2 SRμm 528.57 11.1907 VNIR 1905.51 W/m^2-mu 40
Hyperion B019 W/m^2 SRμm 538.74 11.1119 VNIR 1877.50 W/m^2-mu 40
Hyperion B020 W/m^2 SRμm 548.92 11.0245 VNIR 1883.51 W/m^2-mu 40
Hyperion B021 W/m^2 SRμm 559.09 10.9321 VNIR 1821.99 W/m^2-mu 40
Hyperion B022 W/m^2 SRμm 569.27 10.8368 VNIR 1841.92 W/m^2-mu 40
Hyperion B023 W/m^2 SRμm 579.45 10.7407 VNIR 1847.51 W/m^2-mu 40
Hyperion B024 W/m^2 SRμm 589.62 10.6482 VNIR 1779.99 W/m^2-mu 40
Hyperion B025 W/m^2 SRμm 599.80 10.5607 VNIR 1761.45 W/m^2-mu 40
Hyperion B026 W/m^2 SRμm 609.97 10.4823 VNIR 1740.80 W/m^2-mu 40
Hyperion B027 W/m^2 SRμm 620.15 10.4147 VNIR 1708.88 W/m^2-mu 40
Hyperion B028 W/m^2 SRμm 630.32 10.3595 VNIR 1672.09 W/m^2-mu 40
Hyperion B029 W/m^2 SRμm 640.50 10.3188 VNIR 1632.83 W/m^2-mu 40
Hyperion B030 W/m^2 SRμm 650.67 10.2942 VNIR 1591.92 W/m^2-mu 40
Hyperion B031 W/m^2 SRμm 660.85 10.2856 VNIR 1557.66 W/m^2-mu 40
Hyperion B032 W/m^2 SRμm 671.02 10.2980 VNIR 1525.41 W/m^2-mu 40
Hyperion B033 W/m^2 SRμm 681.20 10.3349 VNIR 1470.93 W/m^2-mu 40
Hyperion B034 W/m^2 SRμm 691.37 10.3909 VNIR 1450.37 W/m^2-mu 40
Hyperion B035 W/m^2 SRμm 701.55 10.4592 VNIR 1393.18 W/m^2-mu 40
Hyperion B036 W/m^2 SRμm 711.72 10.5322 VNIR 1372.75 W/m^2-mu 40
Hyperion B037 W/m^2 SRμm 721.90 10.6004 VNIR 1235.63 W/m^2-mu 40
Hyperion B038 W/m^2 SRμm 732.07 10.6562 VNIR 1266.13 W/m^2-mu 40
Hyperion B039 W/m^2 SRμm 742.25 10.6933 VNIR 1279.02 W/m^2-mu 40
Hyperion B040 W/m^2 SRμm 752.43 10.7058 VNIR 1265.22 W/m^2-mu 40
Hyperion B041 W/m^2 SRμm 762.60 10.7276 VNIR 1235.37 W/m^2-mu 40
Hyperion B042 W/m^2 SRμm 772.78 10.7907 VNIR 1202.29 W/m^2-mu 40
Hyperion B043 W/m^2 SRμm 782.95 10.8833 VNIR 1194.08 W/m^2-mu 40
Hyperion B044 W/m^2 SRμm 793.13 10.9938 VNIR 1143.60 W/m^2-mu 40
Hyperion B045 W/m^2 SRμm 803.30 11.1044 VNIR 1128.16 W/m^2-mu 40
Hyperion B046 W/m^2 SRμm 813.48 11.1980 VNIR 1108.48 W/m^2-mu 40
Hyperion B047 W/m^2 SRμm 823.65 11.2600 VNIR 1068.50 W/m^2-mu 40
Hyperion B048 W/m^2 SRμm 833.83 11.2824 VNIR 1039.70 W/m^2-mu 40
Hyperion B049 W/m^2 SRμm 844.00 11.2822 VNIR 1023.84 W/m^2-mu 40
Hyperion B050 W/m^2 SRμm 854.18 11.2816 VNIR 938.96 W/m^2-mu 40
Hyperion B051 W/m^2 SRμm 864.35 11.2809 VNIR 949.97 W/m^2-mu 40
Hyperion B052 W/m^2 SRμm 874.53 11.2797 VNIR 949.74 W/m^2-mu 40
Hyperion B053 W/m^2 SRμm 884.70 11.2782 VNIR 929.54 W/m^2-mu 40
Hyperion B054 W/m^2 SRμm 894.88 11.2771 VNIR 917.32 W/m^2-mu 40
Hyperion B055 W/m^2 SRμm 905.05 11.2765 VNIR 892.69 W/m^2-mu 40
Hyperion B056 W/m^2 SRμm 915.23 11.2756 VNIR 877.59 W/m^2-mu 40
Hyperion B057 W/m^2 SRμm 925.41 11.2754 VNIR 834.60 W/m^2-mu 40
Hyperion B077 W/m^2 SRμm 912.45 11.0457 SWIR 876.10 W/m^2-mu 80
Hyperion B078 W/m^2 SRμm 922.54 11.0457 SWIR 839.34 W/m^2-mu 80
Hyperion B079 W/m^2 SRμm 932.64 11.0457 SWIR 841.54 W/m^2-mu 80
Hyperion B080 W/m^2 SRμm 942.73 11.0457 SWIR 810.20 W/m^2-mu 80
Hyperion B081 W/m^2 SRμm 952.82 11.0457 SWIR 802.22 W/m^2-mu 80
Hyperion B082 W/m^2 SRμm 962.91 11.0457 SWIR 784.44 W/m^2-mu 80
Hyperion B083 W/m^2 SRμm 972.99 11.0457 SWIR 772.22 W/m^2-mu 80
Hyperion B084 W/m^2 SRμm 983.08 11.0457 SWIR 758.60 W/m^2-mu 80
Hyperion B085 W/m^2 SRμm 993.17 11.0457 SWIR 743.88 W/m^2-mu 80
Hyperion B086 W/m^2 SRμm 1003.30 11.0457 SWIR 721.76 W/m^2-mu 80
Hyperion B087 W/m^2 SRμm 1013.30 11.0457 SWIR 714.26 W/m^2-mu 80
Hyperion B088 W/m^2 SRμm 1023.40 11.0451 SWIR 698.69 W/m^2-mu 80
Hyperion B089 W/m^2 SRμm 1033.49 11.0423 SWIR 682.41 W/m^2-mu 80
Hyperion B090 W/m^2 SRμm 1043.59 11.0372 SWIR 669.61 W/m^2-mu 80
Hyperion B091 W/m^2 SRμm 1053.69 11.0302 SWIR 657.86 W/m^2-mu 80
Hyperion B092 W/m^2 SRμm 1063.79 11.0218 SWIR 643.48 W/m^2-mu 80
Hyperion B093 W/m^2 SRμm 1073.89 11.0122 SWIR 623.13 W/m^2-mu 80
Hyperion B094 W/m^2 SRμm 1083.99 11.0013 SWIR 603.89 W/m^2-mu 80
Hyperion B095 W/m^2 SRμm 1094.09 10.9871 SWIR 582.63 W/m^2-mu 80
Hyperion B096 W/m^2 SRμm 1104.19 10.9732 SWIR 579.58 W/m^2-mu 80
Hyperion B097 W/m^2 SRμm 1114.19 10.9572 SWIR 571.80 W/m^2-mu 80
Hyperion B098 W/m^2 SRμm 1124.28 10.9418 SWIR 562.30 W/m^2-mu 80
Hyperion B099 W/m^2 SRμm 1134.38 10.9248 SWIR 551.40 W/m^2-mu 80
Hyperion B100 W/m^2 SRμm 1144.48 10.9065 SWIR 540.52 W/m^2-mu 80
Hyperion B101 W/m^2 SRμm 1154.58 10.8884 SWIR 534.17 W/m^2-mu 80
Hyperion B102 W/m^2 SRμm 1164.68 10.8696 SWIR 519.74 W/m^2-mu 80
Hyperion B103 W/m^2 SRμm 1174.77 10.8513 SWIR 511.29 W/m^2-mu 80
Hyperion B104 W/m^2 SRμm 1184.87 10.8335 SWIR 497.28 W/m^2-mu 80
Hyperion B105 W/m^2 SRμm 1194.97 10.8154 SWIR 492.82 W/m^2-mu 80
Hyperion B106 W/m^2 SRμm 1205.07 10.7979 SWIR 479.41 W/m^2-mu 80
Hyperion B107 W/m^2 SRμm 1215.17 10.7822 SWIR 479.56 W/m^2-mu 80
Hyperion B108 W/m^2 SRμm 1225.17 10.7663 SWIR 469.01 W/m^2-mu 80
Hyperion B109 W/m^2 SRμm 1235.27 10.7520 SWIR 461.60 W/m^2-mu 80
Hyperion B110 W/m^2 SRμm 1245.36 10.7385 SWIR 451.00 W/m^2-mu 80
Hyperion B111 W/m^2 SRμm 1255.46 10.7270 SWIR 444.06 W/m^2-mu 80
Hyperion B112 W/m^2 SRμm 1265.56 10.7174 SWIR 435.25 W/m^2-mu 80
Hyperion B113 W/m^2 SRμm 1275.66 10.7091 SWIR 429.29 W/m^2-mu 80
Hyperion B114 W/m^2 SRμm 1285.76 10.7022 SWIR 415.69 W/m^2-mu 80
Hyperion B115 W/m^2 SRμm 1295.86 10.6970 SWIR 412.87 W/m^2-mu 80
Hyperion B116 W/m^2 SRμm 1305.96 10.6946 SWIR 405.40 W/m^2-mu 80
Hyperion B117 W/m^2 SRμm 1316.05 10.6937 SWIR 396.94 W/m^2-mu 80
Hyperion B118 W/m^2 SRμm 1326.05 10.6949 SWIR 391.94 W/m^2-mu 80
Hyperion B119 W/m^2 SRμm 1336.15 10.6996 SWIR 386.79 W/m^2-mu 80
Hyperion B120 W/m^2 SRμm 1346.25 10.7058 SWIR 380.65 W/m^2-mu 80
Hyperion B121 W/m^2 SRμm 1356.35 10.7163 SWIR 370.96 W/m^2-mu 80
Hyperion B122 W/m^2 SRμm 1366.45 10.7283 SWIR 365.57 W/m^2-mu 80
Hyperion B123 W/m^2 SRμm 1376.55 10.7437 SWIR 358.42 W/m^2-mu 80
Hyperion B124 W/m^2 SRμm 1386.65 10.7612 SWIR 355.18 W/m^2-mu 80
Hyperion B125 W/m^2 SRμm 1396.74 10.7807 SWIR 349.04 W/m^2-mu 80
Hyperion B126 W/m^2 SRμm 1406.84 10.8034 SWIR 342.10 W/m^2-mu 80
Hyperion B127 W/m^2 SRμm 1416.94 10.8267 SWIR 336.00 W/m^2-mu 80
Hyperion B128 W/m^2 SRμm 1426.94 10.8534 SWIR 325.94 W/m^2-mu 80
Hyperion B129 W/m^2 SRμm 1437.04 10.8818 SWIR 325.71 W/m^2-mu 80
Hyperion B130 W/m^2 SRμm 1447.14 10.9110 SWIR 318.27 W/m^2-mu 80
Hyperion B131 W/m^2 SRμm 1457.23 10.9422 SWIR 312.12 W/m^2-mu 80
Hyperion B132 W/m^2 SRμm 1467.33 10.9743 SWIR 308.08 W/m^2-mu 80
Hyperion B133 W/m^2 SRμm 1477.43 11.0074 SWIR 300.52 W/m^2-mu 80
Hyperion B134 W/m^2 SRμm 1487.53 11.0414 SWIR 292.27 W/m^2-mu 80
Hyperion B135 W/m^2 SRμm 1497.63 11.0759 SWIR 293.28 W/m^2-mu 80
Hyperion B136 W/m^2 SRμm 1507.73 11.1108 SWIR 282.14 W/m^2-mu 80
Hyperion B137 W/m^2 SRμm 1517.83 11.1461 SWIR 285.60 W/m^2-mu 80
Hyperion B138 W/m^2 SRμm 1527.92 11.1811 SWIR 280.41 W/m^2-mu 80
Hyperion B139 W/m^2 SRμm 1537.92 11.2156 SWIR 275.87 W/m^2-mu 80
Hyperion B140 W/m^2 SRμm 1548.02 11.2496 SWIR 271.97 W/m^2-mu 80
Hyperion B141 W/m^2 SRμm 1558.12 11.2826 SWIR 265.73 W/m^2-mu 80
Hyperion B142 W/m^2 SRμm 1568.22 11.3146 SWIR 260.20 W/m^2-mu 80
Hyperion B143 W/m^2 SRμm 1578.32 11.3460 SWIR 251.62 W/m^2-mu 80
Hyperion B144 W/m^2 SRμm 1588.42 11.3753 SWIR 244.11 W/m^2-mu 80
Hyperion B145 W/m^2 SRμm 1598.51 11.4037 SWIR 247.83 W/m^2-mu 80
Hyperion B146 W/m^2 SRμm 1608.61 11.4302 SWIR 242.85 W/m^2-mu 80
Hyperion B147 W/m^2 SRμm 1618.71 11.4538 SWIR 238.15 W/m^2-mu 80
Hyperion B148 W/m^2 SRμm 1628.81 11.4760 SWIR 239.29 W/m^2-mu 80
Hyperion B149 W/m^2 SRμm 1638.81 11.4958 SWIR 227.38 W/m^2-mu 80
Hyperion B150 W/m^2 SRμm 1648.90 11.5133 SWIR 226.69 W/m^2-mu 80
Hyperion B151 W/m^2 SRμm 1659.00 11.5286 SWIR 225.48 W/m^2-mu 80
Hyperion B152 W/m^2 SRμm 1669.10 11.5404 SWIR 218.69 W/m^2-mu 80
Hyperion B153 W/m^2 SRμm 1679.20 11.5505 SWIR 209.07 W/m^2-mu 80
Hyperion B154 W/m^2 SRμm 1689.30 11.5580 SWIR 210.62 W/m^2-mu 80
Hyperion B155 W/m^2 SRμm 1699.40 11.5621 SWIR 206.98 W/m^2-mu 80
Hyperion B156 W/m^2 SRμm 1709.50 11.5634 SWIR 201.59 W/m^2-mu 80
Hyperion B157 W/m^2 SRμm 1719.60 11.5617 SWIR 198.09 W/m^2-mu 80
Hyperion B158 W/m^2 SRμm 1729.70 11.5563 SWIR 191.77 W/m^2-mu 80
Hyperion B159 W/m^2 SRμm 1739.70 11.5477 SWIR 184.02 W/m^2-mu 80
Hyperion B160 W/m^2 SRμm 1749.79 11.5346 SWIR 184.91 W/m^2-mu 80
Hyperion B161 W/m^2 SRμm 1759.89 11.5193 SWIR 182.75 W/m^2-mu 80
Hyperion B162 W/m^2 SRμm 1769.99 11.5002 SWIR 180.09 W/m^2-mu 80
Hyperion B163 W/m^2 SRμm 1780.09 11.4789 SWIR 175.18 W/m^2-mu 80
Hyperion B164 W/m^2 SRμm 1790.19 11.4548 SWIR 173.00 W/m^2-mu 80
Hyperion B165 W/m^2 SRμm 1800.29 11.4279 SWIR 168.87 W/m^2-mu 80
Hyperion B166 W/m^2 SRμm 1810.38 11.3994 SWIR 165.19 W/m^2-mu 80
Hyperion B167 W/m^2 SRμm 1820.48 11.3688 SWIR 156.30 W/m^2-mu 80
Hyperion B168 W/m^2 SRμm 1830.58 11.3366 SWIR 159.01 W/m^2-mu 80
Hyperion B169 W/m^2 SRμm 1840.58 11.3036 SWIR 155.22 W/m^2-mu 80
Hyperion B170 W/m^2 SRμm 1850.68 11.2696 SWIR 152.62 W/m^2-mu 80
Hyperion B171 W/m^2 SRμm 1860.78 11.2363 SWIR 149.14 W/m^2-mu 80
Hyperion B172 W/m^2 SRμm 1870.87 11.2007 SWIR 141.63 W/m^2-mu 80
Hyperion B173 W/m^2 SRμm 1880.98 11.1666 SWIR 139.43 W/m^2-mu 80
Hyperion B174 W/m^2 SRμm 1891.07 11.1333 SWIR 139.22 W/m^2-mu 80
Hyperion B175 W/m^2 SRμm 1901.17 11.1018 SWIR 137.97 W/m^2-mu 80
Hyperion B176 W/m^2 SRμm 1911.27 11.0714 SWIR 136.73 W/m^2-mu 80
Hyperion B177 W/m^2 SRμm 1921.37 11.0424 SWIR 133.96 W/m^2-mu 80
Hyperion B178 W/m^2 SRμm 1931.47 11.0155 SWIR 130.29 W/m^2-mu 80
Hyperion B179 W/m^2 SRμm 1941.57 10.9912 SWIR 124.50 W/m^2-mu 80
Hyperion B180 W/m^2 SRμm 1951.57 10.9698 SWIR 124.75 W/m^2-mu 80
Hyperion B181 W/m^2 SRμm 1961.66 10.9508 SWIR 123.92 W/m^2-mu 80
Hyperion B182 W/m^2 SRμm 1971.76 10.9355 SWIR 121.95 W/m^2-mu 80
Hyperion B183 W/m^2 SRμm 1981.86 10.9230 SWIR 118.96 W/m^2-mu 80
Hyperion B184 W/m^2 SRμm 1991.96 10.9139 SWIR 117.78 W/m^2-mu 80
Hyperion B185 W/m^2 SRμm 2002.06 10.9083 SWIR 115.56 W/m^2-mu 80
Hyperion B186 W/m^2 SRμm 2012.15 10.9069 SWIR 114.52 W/m^2-mu 80
Hyperion B187 W/m^2 SRμm 2022.25 10.9057 SWIR 111.65 W/m^2-mu 80
Hyperion B188 W/m^2 SRμm 2032.35 10.9013 SWIR 109.21 W/m^2-mu 80
Hyperion B189 W/m^2 SRμm 2042.45 10.8951 SWIR 107.69 W/m^2-mu 80
Hyperion B190 W/m^2 SRμm 2052.45 10.8854 SWIR 106.13 W/m^2-mu 80
Hyperion B191 W/m^2 SRμm 2062.55 10.8740 SWIR 103.70 W/m^2-mu 80
Hyperion B192 W/m^2 SRμm 2072.65 10.8591 SWIR 102.42 W/m^2-mu 80
Hyperion B193 W/m^2 SRμm 2082.75 10.8429 SWIR 100.42 W/m^2-mu 80
Hyperion B194 W/m^2 SRμm 2092.84 10.8242 SWIR 98.27 W/m^2-mu 80
Hyperion B195 W/m^2 SRμm 2102.94 10.8039 SWIR 97.37 W/m^2-mu 80
Hyperion B196 W/m^2 SRμm 2113.04 10.7820 SWIR 95.44 W/m^2-mu 80
Hyperion B197 W/m^2 SRμm 2123.14 10.7592 SWIR 93.55 W/m^2-mu 80
Hyperion B198 W/m^2 SRμm 2133.24 10.7342 SWIR 92.35 W/m^2-mu 80
Hyperion B199 W/m^2 SRμm 2143.34 10.7092 SWIR 90.93 W/m^2-mu 80
Hyperion B200 W/m^2 SRμm 2153.34 10.6834 SWIR 89.37 W/m^2-mu 80
Hyperion B201 W/m^2 SRμm 2163.43 10.6572 SWIR 84.64 W/m^2-mu 80
Hyperion B202 W/m^2 SRμm 2173.53 10.6312 SWIR 85.47 W/m^2-mu 80
Hyperion B203 W/m^2 SRμm 2183.63 10.6052 SWIR 84.49 W/m^2-mu 80
Hyperion B204 W/m^2 SRμm 2193.73 10.5803 SWIR 83.43 W/m^2-mu 80
Hyperion B205 W/m^2 SRμm 2203.83 10.5560 SWIR 81.62 W/m^2-mu 80
Hyperion B206 W/m^2 SRμm 2213.93 10.5328 SWIR 80.67 W/m^2-mu 80
Hyperion B207 W/m^2 SRμm 2224.03 10.5101 SWIR 79.32 W/m^2-mu 80
Hyperion B208 W/m^2 SRμm 2234.12 10.4904 SWIR 78.11 W/m^2-mu 80
Hyperion B209 W/m^2 SRμm 2244.22 10.4722 SWIR 76.69 W/m^2-mu 80
Hyperion B210 W/m^2 SRμm 2254.22 10.4552 SWIR 75.35 W/m^2-mu 80
Hyperion B211 W/m^2 SRμm 2264.32 10.4408 SWIR 74.15 W/m^2-mu 80
Hyperion B212 W/m^2 SRμm 2274.42 10.4285 SWIR 73.25 W/m^2-mu 80
Hyperion B213 W/m^2 SRμm 2284.52 10.4197 SWIR 71.67 W/m^2-mu 80
Hyperion B214 W/m^2 SRμm 2294.61 10.4129 SWIR 70.13 W/m^2-mu 80
Hyperion B215 W/m^2 SRμm 2304.71 10.4088 SWIR 69.52 W/m^2-mu 80
Hyperion B216 W/m^2 SRμm 2314.81 10.4077 SWIR 68.28 W/m^2-mu 80
Hyperion B217 W/m^2 SRμm 2324.91 10.4077 SWIR 66.39 W/m^2-mu 80
Hyperion B218 W/m^2 SRμm 2335.01 10.4077 SWIR 65.76 W/m^2-mu 80
Hyperion B219 W/m^2 SRμm 2345.11 10.4077 SWIR 65.23 W/m^2-mu 80
Hyperion B220 W/m^2 SRμm 2355.21 10.4077 SWIR 63.09 W/m^2-mu 80
Hyperion B221 W/m^2 SRμm 2365.20 10.4077 SWIR 62.90 W/m^2-mu 80
Hyperion B222 W/m^2 SRμm 2375.30 10.4077 SWIR 61.68 W/m^2-mu 80
Hyperion B223 W/m^2 SRμm 2385.40 10.4077 SWIR 60.00 W/m^2-mu 80
Hyperion B224 W/m^2 SRμm 2395.50 10.4077 SWIR 59.94 W/m^2-mu 80

Correcting Imagery

When downloading Hyperion imagery it is stored with DN values. Using information from the metadata you can correct this to surface reflectance.

md <- read_lines("../../Hyperion/sevier_lake/EO1H0380332014325110PZ_1T/EO1H0380332014325110PZ_MTL_L1T.TXT")

julian_day <- as.numeric(word(md[18], 8))     #julian day
d <- (1-0.01672*cos(0.9865*(julian_day-4)))   #earth sun distance in astronomical distance
sun_elevation <- as.numeric(word(md[300],7))  #sun elevation
s <- (90-sun_elevation)                       #solar zenith angle in degrees

Equation to correct Hyperion DN values into surface reflectance values

#correcting to surface reflectance
Surf_Reflectance = (pi*(r/Hyperion_Bands$Rad_Conv)*d^2)/(cos(s*pi/180)*Hyperion_Bands$Irradiance)

Now we can plot using three bands to create an RGB image

Surf_Reflectance %>% 
  plotRGB(r=31,g=20,b=10,stretch = "lin")

Spectral Library

Inserting spectral library from USGS

Here’s all the minerals in the USGS spectral library for Hyperion:
acmite actinolite adularia albite allanite almandine alunite
ammonio amphibole analcime ancylite andalusite andesine andradite
anhydrite annite anorthite anthophyllite antigorite aragonite arsenopyrite
augite axinite azurite barite bassanite bastnaesite beidellite
beryl biotite bloedite bronzite brookite brucite buddingtonite
butlerite bytownite calcite carbon carnallite cassiterite celestite
chalcedony chalcopyrite chert chlorapatite chlorite chromite chrysocolla
chrysotile cinnabar clinochlore clinoptilolite clintonite colemanite cookeite
copiapite coquimbite corrensite corundum cronstedtite cummingtonite cuprite
datolite diaspore dickite diopside dipyre dolomite dumortierite
elbaite endellite enstatite epidote epsomite eugsterite fassaite
ferrihydrite fluorapatite forsterite galena gaylussite gibbsite glauconite
glaucophane goethite grossular gypsum halite halloysite hectorite
hedenbergite hematite heulandite hornblende howlite hydrogrossular hydroxyl
hypersthene illite ilmenite jadeite jarosite kainite kaolinite
karpatite kieserite knebelite labradorite laumontite lazurite lepidocrocite
lepidolite limonite lizardite maghemite magnetite malachite margarite
marialite mascagnite meionite microcline mirabilite mizzonite monazite
monticellite montmorillonite mordenite muscovite nacrite nanohematite natrolite
nepheline nephrite niter nontronite oligoclase olivine opal
orthoclase palygorskite paragonite parisite pectolite perthite phlogopite
pigeonite pinnoite pitch polyhalite portlandite prehnite prochlorite
psilomelane pyrite pyrolusite pyromorphite pyrophyllite pyroxene pyroxmangite
pyrrhotite quartz rectorite rhodochrosite rhodonite richterite riebeckite
rivadavite roscoelite rutile sanidine saponite sauconite schwertmannite
scolecite sepiolite serpentine siderite siderophyllite smaragdite sodium
spessartine sphalerite sphene spodumene staurolite stilbite strontianite
sulfur syngenite talc thenardite thuringite tincalconite topaz
tourmaline tremolite trona ulexite uralite uvarovite vermiculite
vesuvianite witherite wollastonite xenotime zircon zoisite zunyite

That’s a lot of minerals

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